小编Anu*_*uya的帖子

我有两个表单A和B.表单A是应用程序的默认启动表单.我在表单A中做了一些事情然后我想要并行运行我的表单B,然后将表单B中的参数传递给表单B中的方法.

怎么样 ？

在以下代码中获得上述错误.如何纠正它.谢谢.请找

protected override void Finalize() {     Dispose(false); } 

在下面的代码中.

using Microsoft.Win32; 
using System.Runtime.InteropServices; 

public class Kiosk : IDisposable 
{ 

    #region "IDisposable" 

    // Implementing IDisposable since it might be possible for 
    // someone to forget to cause the unhook to occur. I didn't really 
    // see any problems with this in testing, but since the SDK says 
    // you should do it, then here's a way to make sure it will happen. 

    public void Dispose() 
    { 
        Dispose(true); 
        GC.SuppressFinalize(this); 
    } 

    protected virtual …

我在c#winforms中完成了一个项目.当应用程序在任何PC上运行时,我想将屏幕的分辨率设置为1680 x 1050.怎么做 ？

我的mysql表中有Date字段.我想通过Windows窗体c#的日期选择器控件插入日期.怎么样 ？

当我尝试使用下面,我收到错误.

代码:

DB.Insert_Orders(Convert.ToInt32(txtA.Text), Convert.ToInt32(txtB.Text), Convert.ToInt32(txtC.Text), DTP_date.Value.ToString("yyyy/MM/dd"));


Error :
{MySql.Data.MySqlClient.MySqlException: Incorrect datetime value: '15' for column 'Date' at row 

通常的方式,我编写XML文件的代码是,

    XmlWriterSettings settings = new XmlWriterSettings();
    settings.Indent = true;
    XmlWriter writer = XmlWriter.Create("Products.xml", settings);

    writer.WriteStartDocument();

    writer.WriteComment("This file is generated by the program.");

    writer.WriteStartElement("Product");
    writer.WriteAttributeString("ID", "001");
    writer.WriteAttributeString("Name", "Keyboard");
    writer.WriteElementString("Price", "10.00");
    writer.WriteStartElement("OtherDetails");
    writer.WriteElementString("BrandName", "X Keyboard");
    writer.WriteElementString("Manufacturer", "X Company");
    writer.WriteEndElement();
    writer.WriteEndDocument();
    writer.Flush();
    writer.Close();

但上面的代码给了我一个不同的XML结构,如果我需要输出如下给定结构,如何编码,

<Books>
<Book ISBN="0553212419">
<title>Sherlock Holmes</title>
<author>Sir Arthur Conan Doyle</author>
</Book>
<Book ISBN="0743273567">
<title>The Great Gatsby</title>
<author>F. Scott Fitzgerald</author>
</Book>
<Book ISBN="0684826976">
<title>Undaunted Courage</title>
<author>Stephen E. Ambrose</author>
</Book>
<Book ISBN="0743203178">
<title>Nothing Like It In the World</title>
<author>Stephen E. Ambrose</author>
</Book> …

我写了一个在后台运行的应用程序.我想写一个代码,这样,当按下"ctrl + Alt + Q"时,我应该提示用户一个消息框,"你确定要退出吗？".它是ac#windows应用程序.

谢谢.

我使用下面的代码来禁用Alt + Tab,Alt + Esc,Ctrl + Esc和Windows Key但不知何故它不起作用.请帮我纠正.

namespace BlockShortcuts
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private delegate int LowLevelKeyboardProcDelegate(int nCode, int
           wParam, ref KBDLLHOOKSTRUCT lParam);

        [DllImport("user32.dll", EntryPoint = "SetWindowsHookExA", CharSet = CharSet.Ansi)]
        private static extern int SetWindowsHookEx(
           int idHook,
           LowLevelKeyboardProcDelegate lpfn,
           int hMod,
           int dwThreadId);

        [DllImport("user32.dll")]
        private static extern int UnhookWindowsHookEx(int hHook);

        [DllImport("user32.dll", EntryPoint = "CallNextHookEx", CharSet = CharSet.Ansi)]
        private static extern int CallNextHookEx(
            int hHook, int nCode,
            int wParam, ref KBDLLHOOKSTRUCT …

我正在使用以下代码禁用热键,如Alt + f4,ctrl + c,它们运行正常.但我无法使用以下代码注册win + L.

namespace KioskMode
{
    public partial class Test : Form
    {
        #region Dynamic Link Library Imports

        [DllImport("user32.dll")]
        private static extern int FindWindow(string cls, string wndwText);

        [DllImport("user32.dll")]
        private static extern int ShowWindow(int hwnd, int cmd);

        [DllImport("user32.dll")]
        private static extern long SHAppBarMessage(long dword, int cmd);

        [DllImport("user32.dll")]
        private static extern int RegisterHotKey(IntPtr hwnd, int id, int fsModifiers, int vk);

        [DllImport("user32.dll")]
        private static extern int UnregisterHotKey(IntPtr hwnd, int id);

        #endregion


        #region Modifier Constants and Variables

        // Constants for …

我是网络服务新手,

数据库访问应该通过Web服务使用ADO.NET来访问存储过程.

有任何想法吗 ？

string Example 1 : abc / 
string Example 2 : abc / cdf / / 
string Example 3 : abc / / / /
string Example 4 : / / / / / 
string Example 5 : abc / / xyz / / /  

我需要在很多场景中删除字符串中的斜杠.我猜这些情景在下面的预期结果中是自我解释的.

结果:

    string Example 1 : abc 
    string Example 2 : abc / cdf 
    string Example 3 : abc  
    string Example 4 :  
    string Example 5 : abc / xyz 

如何使用vng.net这样做？